Solve 261: Element Digit Sum & Multiple by Two by E. Choroba

2 files changed, 32 insertions, 0 deletions

diff --git a/challenge-261/e-choroba/perl/ch-1.pl b/challenge-261/e-choroba/perl/ch-1.pl
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+++ b/challenge-261/e-choroba/perl/ch-1.pl
@@ -0,0 +1,17 @@
+#!/usr/bin/perl
+use warnings;
+use strict;
+use experimental qw( signatures );
+
+use List::Util qw{ sum };
+
+sub element_digit_sum(@ints) {
+    abs(sum(@ints) - sum(map { split // } @ints))
+}
+
+use Test::More tests => 4;
+
+is element_digit_sum(1, 2, 3, 45), 36, 'Example 1';
+is element_digit_sum(1, 12, 3), 9, 'Example 2';
+is element_digit_sum(1, 2, 3, 4), 0, 'Example 3';
+is element_digit_sum(236, 416, 336, 350), 1296, 'Example 4';
diff --git a/challenge-261/e-choroba/perl/ch-2.pl b/challenge-261/e-choroba/perl/ch-2.pl
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+++ b/challenge-261/e-choroba/perl/ch-2.pl
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+#!/usr/bin/perl
+use warnings;
+use strict;
+use experimental qw( signatures );
+
+sub multiple_by_two($start, @ints) {
+    $start *= 2 while grep $_ == $start, @ints;
+    return $start
+}
+
+use Test::More tests => 3;
+
+is multiple_by_two(3, 5, 3, 6, 1, 12), 24, 'Example 1';
+is multiple_by_two(1, 1, 2, 4, 3), 8, 'Example 2';
+is multiple_by_two(2, 5, 6, 7), 2, 'Example 3';